How can we install clamp accessory and SMH10-A0302?

As for microphone installation, SMH-A0302 comes with all necessary parts to set up microphone on almost all helmets. Both boom microphone and wired microphone have velcro to place on any surface of the helmet. The important part of the installation is placing microphone directly in-front of the lips. If a particular helmet does provide fabric surface around the area for microphone velcro, user can use provided velcro sticker to place microphone velcro on smooth surface.